l'Cie all seem to carry a crystal within them. From a gameplay point of view, we see it at the very root of a character's crystarium and with role branches growing as you infuse it with Crystogen points.
At the end of XIII we see a bunch of Adamantoise and other fauna turn into crystal dust to create the pillar for Cocoon. Does this mean the same happens when you battle enemies and they dissolve after battle, turning into Crystogen and allowing you to grow? l'Cie get stronger by absorbing things they kill?
TheTrueBZ: Maybe your PS2 committed suicide after witnessing your obnoxiousness.